Stapler



FIG. 1 is a perspective view of the front, top and left side of a stapler showing my new design;

FIG. 2 is a perspective view of the front, top and right side thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line showing of the stapler is included for the purpose of illustrating portions of the stapler and forms no part of the claimed design. 

CLAIM The ornamental design for a stapler, as shown and described. 